package Demo3;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        while(scanner.hasNextInt()){
            int x=scanner.nextInt();
            int y=scanner.nextInt();
            int z=scanner.nextInt();
            Sub sub=new Sub(x,y,z);
            System.out.println(sub.calculate());
        }
    }
}
class Base{
    private int x;
    private int y;

    public Base(int x,int y){
        this.x=x;
        this.y=y;
    }
    public int getX(){
        return x;
    }
    public int getY(){
        return y;
    }
}
class Sub extends Base{
    private int z;
    public Sub(int x,int y,int z){
        super(x,y);
        this.z=z;
    }
    public int getZ(){
        return z;
    }
    public int calculate(){
        return super.getX()*super.getY()*this.getZ();
    }
}
